body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #333;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
}

nav {
    background-color: #444;
    overflow: hidden;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 14px 20px;
    display: inline-block;
}

nav a:hover {
    background-color: #575757;
}

.container {
    padding: 20px;
    text-align: center;
}

footer {
    margin-top: 20px;
    text-align: center;
    font-size: 0.9rem;
    color: #777;
}